The error was correlated to religion management , but deleting lines affected in export_descr_buildings.txt , not solve it , only CTD.
After reading this useful thread i adopted this fully working solutions :
1) install RIO
2) copy the folder data inside the "rio" Folder over the folder data in Vanilla BI folder.
CAUTION: do not delete or modify the contents in RIO folder
3) Launch BI from the normal exe "without" the -mod: RIO extension or it not works
The game start with RIO MOD not foldered but fully playable , i had no CTD in battle or strategic map for now.
Riothamus , this is a great mod , several year ago i played your first release and was very interesting , this release execpt for some install problem is more deeply and accurate.
Keep up the good work.